polysoft.com.cn

Valid Email Server
Domain Lookup › polysoft.com.cn

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
polysoft.com.cn
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-14 20:39:31 UTC · ↺ Refresh

MX Hostnames

  • mx.263.net
  • mxw.263.net

MX Priorities

  • mx.263.net: 10
  • mxw.263.net: 5

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 164.92.126.242 (no PTR)
  • 38.83.106.85 ↩ us-mx2.263.net
  • 143.110.227.31 (no PTR)
  • 38.83.106.84 ↩ us-mx1.263.net

SOA Record

Raw SOA dns21.hichina.com hostmaster.hichina.com 2026011209 3600 1200 86400 600
Primary NS (mname)
dns21.hichina.com
Admin Email (rname)
hostmaster@hichina.com
Serial
2026011209
Refresh
3600s
Retry
1200s
Expire
86400s
Minimum TTL
600s

Nameservers (NS)

dns21.hichina.com
dns22.hichina.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.263.net -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • SPFv=spf1 include:spf.263.net -all
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